.alpha.-Cyclodextrin, 2-hydroxypropyl ethers

Surface tension

Administrative data

Endpoint:

surface tension

Type of information:

experimental study

Adequacy of study:

key study

Study period:

25.02.2002

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

other: Guideline study

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2002

Report date:

2002

Materials and methods

Test guideline

Qualifier:

according to guideline

Guideline:

EU Method A.5 (Surface Tension)

Version / remarks:

1.6.1

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Type of method:

OECD harmonised ring method

Test material

Test material information

Constituent 1

Reference substance name:

-

EC Number:

451-510-9

EC Name:

-

Cas Number:

128446-33-3

Molecular formula:

C36H42O12(OH)18-y[(C3H6O)nOH]; y=1-10; n=1-4; y x n = 3,7 (average)

IUPAC Name:

Reaction products of .alpha.-cyclodextrin and methyloxirane

Details on test material:

Batch 63B001
Cavasol W6 HP

Results and discussion

Surface tension

Surface tension:

66.1 mN/m

Temp.:

20 °C

Conc.:

1 g/L

Any other information on results incl. tables

type of solution	1g / l
test temperature	20 °C + 0.5°C
age of the solution before transferring into the measurement vessel	60 min
measured value for surface tension of the double-distilled water (sg)	72,7 mN/m
value for surface tension of water cited in the literature (20°C) (s0)	72,75 mN/m
calibration factor for all instrument readings (s0/sg)	1,0007